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Applicant:
Central University of Tamil Nadu 
Title:
Green template synthesis of hydroxyapatite using lactic acid as chelating agent 
Inventor(s):
DR. D. GOPI, DR. L. KAVITHA 
Applicant:
Central University of Tamil Nadu 
Application type:
Granted - 2020-03-02 
Application Number:
333698 
Applied at:
India 
Entered by:
Central University of Tamil Nadu 
Abstract:
Strontium (Sr), magnesium (Mg) substituted Hydroxyapatite (Ca7Sr2Mg(PO4)6OH2, Sr,Mg-HAP) particles is synthesized by a green template method using the natural lactic acid from sour milk of cow, as a chelating agent. In the present investigations, we have selected the natural source lactic acid as a chelating agent which is mainly derived from the sour cow milk. When compare to other chelating agents, the lactic acid is biocompatible, biodegradable, water soluble and is polar in nature. In the acidic solutions, -COOH and –OH groups can be created, which can form stable binding with divalent ions such as calcium, strontium and magnesium ions in solutions. The lactic acid in the sour milk of cow act as a chelating agent which helps in the formation of phase pure Sr,Mg-HAP but does not form composite with Sr,Mg-HAP particle. The as-obtained Sr,Mg-HAP using the natural source lactic acid (sour cow milk) as a chelating agent product is totally new and has various biomedical applications such as dental and bone fillers and other pharmaceutical industries. Advantages The use of environmentally benevolent materials (lactic acid from sour milk of cow) for the synthesis of Sr,Mg-HAP particles offers numerous benefits of non-toxic, ecofriendliness and good compatibility. Finally, the as-synthesized Sr,Mg-HAP from natural sources lactic acid (sour milk of cow) is low-priced and uncomplicated.  

 
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